Split drum for a compacting work machine

Abstract

A split drum is provided for a compacting work machine and includes a first and a second drum section. A differential arrangement is operatively positioned between the first and second drum sections. Rotational power is supplied to the first and second drum sections through the differential arrangement which is connected with a propel motor. The first and second drum sections are rotated simultaneously by grounding either the first or second drum section with the propel motor. Releasing the grounding allows the first drum section to counter rotate relative to the second drum section.

1. A split drum rotatably supporting a main frame of a compacting work machine, said split drum comprising:
 a first drum section;  
 a second drum section coaxially positioned with and adjacent to said first drum section; and  
 a differential arrangement operatively connecting said first drum section and said second drum section.  
 
   
   
     2. The split drum of  claim 1 , wherein said differential arrangement includes an internal ring sprocket attached to said first drum section and an internal ring gear attached to said second drum section and at least one drive sprocket meshingly engaging said internal ring sprockets of said first and second drum sections. 
   
   
     3. The split drum of  claim 2 , wherein said drive sprocket is rotatably supported by a floating frame. 
   
   
     4. The split drum of  claim 3 , including a bearing disc positioned radially outward from and adjacent to said drive sprocket, said bearing disc contacting said internal ring sprocket of said first and second drum sections. 
   
   
     5. The split drum of  claim 3 , wherein said differential arrangement includes a plurality of drive sprockets equally spaced and rotatably supported by said floating frame. 
   
   
     6. The split drum of  claim 5 , wherein said floating frame is connected to a housing of a vibratory mechanism, said vibratory mechanism being coaxial with said first and second drum sections. 
   
   
     7. The split drum of  claim 6 , wherein said housing of said vibratory mechanism being operatively connected with a propel motor. 
   
   
     8. The split drum of  claim 7  including a coupling arrangement grounding said housing of said vibratory mechanism and a one of said first drum section and said second drum section. 
   
   
     9. The split drum of  claim 8 , wherein said coupling arrangement includes a clutch, a pressure plate and a throughout yoke. 
   
   
     10. The split drum of  claim 9 , wherein said clutch is connected to a one of said internal ring sprocket and a bulkhead of a one of said first drum section and said second drum section, said pressure plate is slidably supported by said housing of said vibratory mechanism. 
   
   
     11. The split drum of  claim 8 , wherein said coupling arrangement includes a rotor plate and a caliper and brake arrangement. 
   
   
     12. The split drum of  claim 11 , wherein said caliper and brake arrangement is connected to a one of said housing of said vibratory mechanism and said first drum section and said second drum section. 
   
   
     13. The split drum of  claim 8 , wherein said coupling arrangement includes and actuator and a locking pin. 
   
   
     14. The split drum of  claim 13 , wherein said actuator is connected to said housing of said vibratory mechanism and said locking pin engages a one of a bulkhead and an internal ring sprocket positioned one inside of a drum shell of said first drum section and said second drum section.